On Wed, Nov 12, 2014 at 4:42 PM, Christopher Greer <[email protected]> wrote:
>
> I've got a BBB (rev C) and I've been trying different images. As I was
> learning to flash it, I've gotten one of the boards in a state where it will
> boot off the microSD card, but not off the emmc. When there is no card
> inserted into the BBB, the power LED comes on steady, but there is no output
> on the serial terminal and none of the LEDs seem to work. However, when
> booting from a SD card, everything seems to more or less behave.
>
> I haven't booted on the SD card and tried to access the emmc, since I'm not
> entirely sure on how to do that.
>
> I've attached the output of running a flasher SD card image that seems to
> complete normally. The SDcard seems fine; I've used it to flash another BBB
> just fine. The particular image on the SD card doesn't seem to matter
> either.
>
> There is one section of the output that seems suspicious, which I've copied
> from the attachment. It seems like the emmc partition table is somehow
> corrupted? I'm new to this though, so I'll defer to anyone who knows more.

That looks fine.. sfdisk is just noisy that's all..

What is the serial output look like, after flashing, after removing
the microsd and after removing power.. (sysboot pins need to drain)

Then apply power..

What's the serial output at that point?

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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